Peak Flow Meter


  • For Quick And Hassle-Free Delivery Of Asthma Medication
  • Measure and monitor peak flow
  • Increases Inhaler Effectiveness
  • Buy With Confidence From UK Registered Pharmacy

Peak flow is a measure of how quickly you can blow air out of your lungs. You measure it by blowing as hard as you can into a small hand-held device called a peak flow meter.



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Product Description

Why peak flow is measured

Peak Flow Meter measuring how fast you’re able to breathe out, your peak flow score can indicate whether your airways are narrowed. This could be a sign that you have asthma, although other tests such as spirometry will often be needed to confirm the diagnosis. If you’ve already been diagnosed with asthma, measuring your peak flow regularly can be a useful way of monitoring your condition. Your score can show whether or not your condition is getting worse. It can also check if your medication is working, and indicate whether you’re having an asthma attack. Measuring your peak flow before and after exposure to a possible asthma trigger, such as something you’re allergic to or a substance you’re exposed to at work, may also show if anything in particular causes your symptoms.

How to measure your peak flow

The first time your peak flow is measured, you’ll be taught how to do it by a doctor or nurse. After this they may advise you to carry out the test regularly at home using your own peak flow meter.

To measure your peak flow:

  • find a comfortable position, either sitting or standing
  • reset your peak flow meter so the pointer is pushed back to the first line of the scale – this is usually 60
  • hold the peak flow meter so it’s horizontal and make sure that your fingers are not obstructing the measurement scale
  • breathe in as deeply as you can and place your lips tightly around the mouthpiece
  • breathe out as quickly and as hard as you can
  • when you’ve finished breathing out, make a note of your reading

This should be repeated 3 times, and the highest of the 3 measurements should be recorded as your peak flow score.

Please see more information on Peak Flow Meters and Other Asthma Treatments.